---
product_id: 686824544
title: "Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned"
brand: "mjr tumblers"
price: "€ 86.32"
currency: EUR
in_stock: true
reviews_count: 6
category: "Mjr Tumblers"
url: https://www.desertcart.sk/products/686824544-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish
store_origin: SK
region: Slovakia
---

# 12,000 grit sub-micron polish Premeasured 4-stage grit kit Proud Disabled & Veteran Owned USA brand Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned

**Brand:** mjr tumblers
**Price:** € 86.32
**Availability:** ✅ In Stock

## Summary

> ✨ Polish Like a Pro, Rock Your World! ⚡

## Quick Answers

- **What is this?** Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned by mjr tumblers
- **How much does it cost?** € 86.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/686824544-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish)

## Best For

- mjr tumblers enthusiasts

## Why This Product

- Trusted mjr tumblers brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-in-One Kit:** Includes coarse, fine, pre-polish, and exclusive extreme polish for a complete tumbling cycle.
- • **Effortless Precision:** Premeasured silicon carbide grits perfectly balanced for 10lb tumblers—just pour and tumble.
- • **Veteran-Owned Quality:** Support a Disabled and Veteran owned American company with every purchase.
- • **Expert Guidance Included:** Step-by-step instructions with pro tips ensure flawless results every time.
- • **Unmatched Extreme Polish:** Experience the finest 12,000 grit aluminum oxide for mirror-like rock finishes.

## Overview

The MJR Tumblers Refill Grit Kit delivers premium 12,000 grit sub-micron aluminum oxide polish combined with premeasured silicon carbide grits for a flawless 4-stage rock tumbling process. Designed for 10lb rotary or vibratory tumblers, this Disabled and Veteran owned American brand ensures unparalleled polish quality and ease of use with included expert instructions.

## Description

Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned : desertcart.co.uk: Home & Kitchen

Review: Not 6lbs - There was loose grit all over the packaging which had to be thrown away and meant the grits were contaminated with other grades of grit so unusable
Review: This grit works just like all others, if used correctly. It is so easy to open and pour it into tumbler--the perfect amount for a 10-lb tumbler. Highly recommended.

## Features

- Extreme Polish! Every rock tumbling kit from MJR Tumblers comes with our Exclusive 12,000 Grit Sub Micron Extreme Aluminum Oxide Polish! No other polish even comes close to our results. If you want the best, MJR Tumblers 12,000 Grit Aluminum Oxide Extreme Polish is what you need!
- MJR Tumblers is a Disabled and Veteran Owned Company!
- Premeasured and works with all rotary and vibratory tumblers. All 4 Stages are premeasured for your tumbler, just pour and roll! It Can’t get easier than that!
- Each 10lb kit contains the following: 10oz of course 60/90 silicon carbide grit, 10oz of fine 120/220 silicon carbide grit, 5oz of pre polish 400/600 silicon carbide grit, 5oz of MJR Tumblers Exclusive 12,000 grit Extreme Aluminum Oxide Polish
- MJR Tumblers is Proud to be an American company located in Pecatonica Illinois in the good ole USA!
- Includes easy to understand rock polishing instructions with lots of tips and tricks with every purchase from MJR Tumblers!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FHLKRY1 |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (253) |
| Date First Available | 16 Jan. 2024 |
| Educational Objective(s) | Develop patience and understanding of multi-step processes through rock tumbling. |
| Item model number | MJR10pgk |
| Manufacturer recommended age | 8 months - 8 years |
| Material Type(s) | Silicon Carbide Aluminum Oxide Plastic Pellets |
| Package Dimensions | 22.86 x 12.7 x 4.57 cm; 850.49 g |
| tech_spec_battery_description_toys | No batteries required |

## Images

![Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - Image 1](https://m.media-amazon.com/images/I/51eysBrID7L.jpg)
![Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - Image 2](https://m.media-amazon.com/images/I/612EmMWHNKL.jpg)
![Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - Image 3](https://m.media-amazon.com/images/I/61POizUUQzL.jpg)
![Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - Image 4](https://m.media-amazon.com/images/I/61aeQRPy1vL.jpg)
![Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned - Image 5](https://m.media-amazon.com/images/I/61mhoieNFpL.jpg)

## Customer Reviews

### ⭐⭐⭐ Not 6lbs
*by L***E on 3 March 2025*

There was loose grit all over the packaging which had to be thrown away and meant the grits were contaminated with other grades of grit so unusable

### ⭐⭐⭐⭐⭐ Review
*by A***P on 3 September 2025*

This grit works just like all others, if used correctly. It is so easy to open and pour it into tumbler--the perfect amount for a 10-lb tumbler. Highly recommended.

### ⭐⭐⭐⭐⭐ Review
*by R***S on 6 November 2025*

I BOUGHY THIS BECAUSE I acquired a tumbler? This polishing package was great, but I never realized how long and com.ited you had to be...let alone patient...to pick this hobby up!!! I got better things to do? Ha

## Frequently Bought Together

- Refill Grit Kit w MJR Tumblers Premium Quality Extreme Polish 12,000 Grit Sub Micron Aluminum Oxide Polish for Unparalleled Result. For 10lb Rock Tumblers w Silicon Carbide, Disabled and Veteran Owned
- 2 LBS Rock Tumbling Ceramic Filler Medi Rock Tumbling Ceramic Filler Media Non- Abrasive Ceramic Pellets for All Type Tumblers 3/16" X 3/8"
- Blue Marble National Geographic Rock Tumbling Media – GemFoam Reusable Rock Polisher Foam, Use After Rock Tumbling Grit Cycles, Adds Shine to Tumbled Rocks and Minerals, Rock Tumbling Supplies

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sk/products/686824544-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish](https://www.desertcart.sk/products/686824544-refill-grit-kit-w-mjr-tumblers-premium-quality-extreme-polish)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-28*